3. The working substance for a Carnot cycle is 8 Ibm of air. The volume at the beginning of isothermal expansion is 9 ft and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2 and the temperature of the cold body is 90 °F. Find: a) Q, and QR (BTU), b) V3 and P3, c) V, and P4, d) mean effective pressure (psia). 4. In an air standard dual cycle, P, = 101.325 kPaa and t, = 60.3 °C. Compression ratio is 18 and the pressure at the end of the constant volume heat addition process is 7695 kPaa. Cut-off ratio is 1.5. On the basis of 1 kg of a hot air standard with k = 1.31, find: a) P,V,T at cycle state points, b) percent clearance, c) Wnet (KJ), d) thermal efficiency, e) mean effective pressure (kPaa)

3. The working substance for a Carnot cycle is 8 Ibm of air. The volume at the beginning of isothermal expansion is 9 ft and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2 and the temperature of the cold body is 90 °F. Find: a) Q, and QR (BTU), b) V3 and P3, c) V, and P4, d) mean effective pressure (psia). 4. In an air standard dual cycle, P, = 101.325 kPaa and t, = 60.3 °C. Compression ratio is 18 and the pressure at the end of the constant volume heat addition process is 7695 kPaa. Cut-off ratio is 1.5. On the basis of 1 kg of a hot air standard with k = 1.31, find: a) P,V,T at cycle state points, b) percent clearance, c) Wnet (KJ), d) thermal efficiency, e) mean effective pressure (kPaa)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Numerical Calculations

In the mid-20th century, the availability and the growth in power of digital computers led to the increase in the mathematical model in the field of engineering and science. The analysis of these detailed models needs to be increased.

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Enclose all final answers (rounded to 4 decimal places)

(PLEASE WRITE ELIGIBLY)

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3. The working substance for a Carnot cycle is 8 Ibm of air. The volume at the beginning of isothermal
expansion is 9 ft° and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2
and the temperature of the cold body is 90 °F. Find: a) Q, and QR (BTU), b) V3 and P3, c) V, and P4, d)
mean effective pressure (psia).
4. In an air standard dual cycle, P, = 101.325 kPaa and t, = 60.3 °C. Compression ratio is 18 and the
pressure at the end of the constant volume heat addition process is 7695 kPaa. Cut-off ratio is 1.5. On
the basis of 1 kg of a hot air standard with k = 1.31, find: a) P,V,T at cycle state points, b) percent
clearance, c) Wnet (KJ), d) thermal efficiency, e) mean effective pressure (kPaa)

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